Furnace.



FURNACE, APPLICATION FILED MAY 12, 1310.

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WIT'NESSES www fr?, vanaf L. L. KNOX.

PURNAGB. l

APPLICATION FILED HAY 12, 1910.

Patented Dot. 25, 1910.

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In Grim- UNITED STATES PATENT OFFICE.,V

ir'rinnn L. xNoiL or AvALo'N, PENNSYLVANIA, AssmNon 'ro xEYsToN'n FURNA'CE ."NSTBUc'rroN coMPANY. or PITTSBURGPENNSYLVANIA, a CORPORATION or irnNNsrrnrnNIa.

'it may concem :Be-it known .that `=I, LUrHnn'L. KNox, of ffuAyalonfAll henycounty, Pennsylvania, 'chave invente -a new and useful Improve- 5 ment in Furnaces, of which the following f1.1 isfa full, clear and exact description, referf ence being. had to the ,accompany1ng draw A,wings, forming part joftlus specification, in ','clvhich---l 1 l lof ffFig'ure 1 is a vertical longitudinal section .t of one-endportion of a furnaceembod ing my invention; Fig. 2 is an end view o the same. "with portions. of `the water Jaclret A broken .awa Fig. 3 is a section on the line -.HI':7.III ogy-Fig; 1"an i Fig.4 is a section Ithe line- V9I ,of Fig. 2. i

i 1..My;inventicn has relation to Acertain` new f and `useful.l improvements in furnaces, and

more particularly-to vopen-hearth furnaces,

2 0 and-is designed toprovlde a ,novel.system .protection of the furnacej The nature ofY my. invention will .be best will understood by referenceto thedrawings, 1n

thu h the inventionis. applicable in many of-itseatures toother types of furnaces.

with .the opening 7 for the oil burner. The end wall, together withfthe cooling plates 8 and 9, is referabl arched transversely' as shown in ig. 4, t e cooling plate having material. f V The upper rtion of the furnace above the line a-a see lgs. 1 and 3), which is at the bottom of the furnace doors is preferably' constructed separatel frein the base portion of the furnace ow said h ne, so that such upper portion can be read11y .re-

built when necessary. This upper portion is protected b a series of ho ow cooling 65 plates 11, wh'c are arranged vertically side FUR/NACE.

` A Specication ofLetters Patent. Patented 'eppnca'inai'ed nay 12,1510. termino.:$60,856.V

@and arrangement of water-jacketingfor the which'lhave-shown the saine a plied to an' -.\..o enhearth furnace of. the o -lired type,

plate 8 -has an opening 8 therein registering i skew-backs 10 which hold the refractory by side, and which referably cover the en- ,tire area of the si e walls. of. the furnace above the line 'af-c.

The roof of the furnace consists of a refractory inner wall and an outer series of coolinv plates 12, both wall and plates bein arche andthe lates havin skew-backs which support t e wall. T ese skew-back! are shown as restin upon a series of angles. 14. The water-coo ed plates preferabl ex, tend over the entire areaA of the roof. ese plates, together with the refractory lining the roof cnn. be readily removed and re-v placed.

pipes for the coolingplates, These pipes may be arranged in various wa s, but are preferably so arranged that in a cases the c oled water will entcrat the lower portion of a plate, while the heated. water will eschpe from its upper portion.

' The end platesS and 9 preferably have across their lowerends, and supplied'from fted-pipes 15b at each side; The pipes 16l -a're perforated and are arranged to dislower walls of the cooler. While 1 have shown only a ortion o f a complete furnace, it will be un er'stood that ably water-cooledin the manner dcribed, and that the cooling lates for the roof and side walls extend t rouoho'ut theent-irelength of the furnace. 'lhe cooling plates for the side :walls of the furnace are fitted' around the charging doors 16 -in the manner shown in Fig. 1.

It will be noted ythat all the coolin plates will be arranged exteriorly of'the rnace; that the can be readily applied to vthe fur- -nace wa ls and roof; and that they afford n -eiiicient protection to 'all portions of the ace which are most subjected to the destructive action of heat.

1. In a regenerative furnace, an end wall or bulk head for the ufptakes and ports, comprising a plurality o outer hollowcooling lates and an inner refractory wall or lining, the said wall or lining and plates being arched transversely and the coolingplates having skew-backs which sup ort and car the wall or lining; substantial y as describeld s ray 'pipes 15*l extending transversely both end walls of the furnace are pieferof the roof, being in sections, any section of 15 Wherever seen designates circulating charge the cooling fluid directly against the.

251,11 zii-regenerative furnace, un end wall or bulk head 'for the u'fptakes and ports, comprising a plurality o outer hollow cooling plates arranged ltransversely across the uptakes one abfve another and' an inner refractor "wall'orli'ning, the said wall or lining an 4plates-beinv arched transversely and the'coolmg'- lates aving skew-backs which support an carry the wall or lining; sub'- stantially as described. f 3. In a furnace, an arched roof comprising an innerrefractor -wall 'and a plurality of hollow closed cooing plates, each of said plates having'tileans which support and carry a section of 'the refractorywall; substantially as described.

4. In a furnace; an arched roof com rising an inner refractor wall and a plura ity of hollowfelosed coo ing plates, each of said plates having skew-backs which support and carry a section of the refractory wall, said plates exbendin .continuously across the arch; substantia y as described. E

5. ;In a furnace, a transveslelyrchcd roof consisting of 'an inner refractory wall, and a series of transversely arch' ,'.hollow cooling plates which cover substantiall the entire roof of the furnace, eacl'rfplate having skew backs at its ends which arry a section ofthe refractory wall; substantially'asfdescribed.

6. An open hearthfurnace having refractory side walls and a binder for said walls consisting of -water cooled plates which cover the major portion of the area'ofl'said walls, said plates extending upwardly above the roof of the furnace, and securing means en ging the upper portions of the plates; su st-antlally aS described. f

' 7. An open hearth furnace having refractory end, side'and roof walls, and a series'of hollow 'water cooled plates covering the major portion of the outer surface of each of said walls the plates at the ends and sides forming the furnace binders, and the roof plates supportingA the 4refractory roof of the furnace; substantially as described.

48. An open hearth furnace having refractoryend, side and roof walls, and a series of hol'ow water cooled plates covering the ma wardly ,from the bottoms of the furnace doors, the roof plates supportin and carrying the refractory roof wall; su stan- .tially as described.

9. An open hearth furnace having its hearth portion and the portion above the hearth provided frames, and with separable walls, the lineof sefparation being at substantially the bottom o the furnace doors; substantially as described.

'10. An open hearth furnace having its hearth port1on, and the portion above the o r portion of the outer surface of each ofsai Walla the side plates extending upT with separate andv separable hearth constructed with separate and separable frames, and with se arablewalls, the line of separation being a jacent to the bottom of the 'furnace doors, the upper portion having its side walls4 covered exteriorly by hollow cooling lates which extend upwardly from the ine of separation; substantiallyas described.

11. A cooling member for furnaces, having therein a spray pipe arranged to discharge afrainst a wall thereof, said pipe extending flirough opposite walls of the member; substantially as described.

In testimony whereof, I have hereunto set my hand.

LUTHER L. KNOX. Witnesses:

H. M. Conwm,

GEO. H. PARMELEE. 

